... shape Black inner-shell makes sharper monitor2) Built in OSD menu and support inputting with Chinese or ... power on.4) The first designer of wide voltage in domestic, DC12V~AC24V, no need to identify "+" or ... , AD, PHILIPS, SAE, VCL etc.18) Built-in temperature-controlled heating system and the speed fan19) 3 ... class lightning defend, built in 3000V lightning proof, surge resistant.20) IP ...